This is a major release and Glade has seen a world of improvement since 3.4. See the full announcement for details.

Some feature highlights for this version are:

• Support for the old libglade and the new GtkBuilder format.
• Target a specific GTK+ version and only the relevant objects, signals and properties will be avaliable.
• New GTK+ objects avaliable thanks to GtkBuilder:
  • GtkAction
  • Gtk+'s MVC elements like GtkTreeView, GtkIconView, GtkComboBox, GtkListStore or GtkTreeStore, allowing to define within Glade all the column, cellrenderer or model elements and connect them to have a working treeview, all that using a specialized editor.
  • GtkIconFactory
  • GtkSizeGroup
• Custom editors for GtkButton, GtkImage, GtkLabel, GtkEntry and many more.
• Python plugin